<!doctype html>
<html lang="en">
  <head>
    <meta charset="UTF-8" />
    <meta name="viewport" content="width=device-width, initial-scale=1.0" />
    <title>Document</title>
  </head>
  <body>
    <div id="music">
      <audio loop="" id="audio" src="music" autoplay>
        您的浏览器不支持 audio 元素。
      </audio>
      <img
        src="musicImg"
        alt="播放音乐"
        id="muBut"
        class="muBut"
        onclick="changeMusic(this)"
      />
    </div>
  </body>
</html>
